Smoke-consuming furnace.



o.V 885,800. PATEETED APB, 21, H3653.

. SIOHBRT.

BMGgB GDHUMIG FEMME.

Mmmm uns :su es. uw

' l msnm-@amie s.

i following is a specification.

To all whom it may concern.' I

Be it known that I, ALois Sicnisn'r, subject y of the Emperor of Austria-Hunga Y, resid` ing at Carlsbad, Austria-Hungaryfliave invented certain new and useful improvements in Smoke-Consuming Furnaces, of which the l-feretoforej in all smoke-consuming furhave been more or less dependent upon thei skilful attendance of a reliable stoker; such furnaces not giving complete satisfaction when in charge of careless attendants.

'l`he sub'ect of my invention is a furnace in which t ie fuel is burned entirely without smoke and 'which by reason of its simplicity, can be operated by even the most inexperienced stoker; operatinfr satisfactorily at all stages of combustion, without skilled attendance..

One constructional form of the furnace is shown in the drawing, wherein Figure 1 is a vertical longitudinal section of the furnace on the line C, Fig. 2. Fig. 2 is a horizontal section on the line A, B, Fig. 1, looking upwardly. F ig. 3 is a section on the line i), i, Fig. 1, loo ing obliquely u ward toward the crown of the arch; tlrie,

a diagrammatic section as along the line air is supplied from tie ash-pit to the lateral fire. is started on the flat grate c and forms c un intense flame-jet which extends over the must always be kept full, in order to replace right hand portion of the figure representing! (1 il, Fig. 1, showinlr the manner in which 'i air passages and Fig. 4 is a section on the v' line I, K, Big. 1, looking obliquely downwills:iliit coal being placed into the feeding box n. slides therefrom over the incline grate i; to the flat grate c until the whole surface of the two grates is uniformly covered; the inclined grate b is provided at its upper half with narrow air apertures like a po vgonal rrate and at its lower half with lwider longitudinal apertures; the flat grate e likewise has longitudinal apertures. The

inclined grate b to the flues f; during this operation the coal on the upper half of the inclined grate b up to the feeding box a gives off its gases and slides rradually downwards onto the flat rrate c as t ie combustion on the lutter procee s, thereby continuously replaeing the consumed coal. The feeding box a Washpit immediately beneath-.the

ifiat grate c are the inlet openings d, d of the fair-supply lpassages for consuming the smoke; g

passes out through the flues f as a perfectly f smokeless flame into the chamber in which l it is to be used for any special iurpose. i Moreover, in combination with eac i o the fE ascendin fiues d and d a further air-supply passage and k is'provided for the direct. suppl f of external air, in order |n the case of a coa containing a largo amount of sulfur, to supply a suicient quantity of air through the ascending flues d, d3 to the arched flues e and through these to the. combustion chainher c', when with a low fire the valve. g is to a eat extent closed. T he passages k, k can ie controlled by danipers or the like.

If the ate surface is uite covered and an intense re is required t ie valve g must be .5 from the top the downwardl sliding coal.

flie necessary air is supplie to the grate l f? through the air-valve g and this can be regu- ,fully opened; by this means, a large quantity -of air enters the ash pit h and passes from here through the air flues d, d3 into the arched fiues e and through the a ierturcs e 'ithereof into the combustion chain )er a. and

l this` kee s perfect stepwith the de` i velopinent of t ie fire in the combustion chamber a'; when a slower fire is desired, the, valve is more nearly closed the supply of air is Yess and therefore the fire is lowered. With a slower fire, less smoke is produced and less air is required to burn it; in this last case with coal containing a large amount of sulfur the supply of air can take place to the re uired degree through the passages k,

(hc operation of the smoke consuming furnace as above described is therefore so to say automatic, since it is in intimate connection with the development. of the process of combustion in the combustion chamber. The object of this furnace is to produce u perfectly smokeless combustion with aitention of the simplest kind and to utilize the fuel with the greatest. efficiency, so that large economies in fuel and cost of working can be Obtained as compared with thc furnaces heretofore known.

Claims.

1. In a smoke consuming furnace, in combination, a fuel-supply box, an inclined grate, a substantially horizontal grate below said inclined grate, an ash-pit having a controllable air inlet,an integral arch extending eusumed; the flame burns quite white. andI .v

tirely across the upper part of the combustion chamber, out of contact with the. fuel, and having downwardly opening orifices t lated in accordance with the degree of Iieat 'i to be. attained v i' z adapted tod'ischaligie air upon the upper surface of the fuel, lateral air-passages connectlng the ash-pit with the arch orifices, independent means for suppl 'n air to said lateral air-passages, and a lscarge flue at the upper end of said arch, whereby the air and heated gases are assed over the entering fuel to burn the vo atile elements thereof. i 2. In a smoke consuming furnace, in combination a fuel-supply box, an inclined grate, a substantially horizontal grate below said inclined grate, an ash-pit having a controllable air inlet, an integral arch extending entirely across the upper part of the commstion chamber, out of contact with the fuel, t and having downwardly opening orifices adapted to discharge air upon the upper surface of the fuel,-lateral air-passages connecting the ash-pit with the arch orifices, sup-il plemental controllable inlets for admitting external air to said lateral passages, and a discharge flue at the u per end of said arch, whereby the air amil heated gases are passed over t xe entering fuel to burn the volatile elements thereof.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

ALOIS SICHERT.

g Witnesses:

i LUDWIG KORN;

mmwlimss A. Souu'rsn. 

